Instead of using string, it’s much easier to use a long plastic coated metal twist-tie to suspend the silver. The silver won’t spin around and you can wrap the twist-tie around any shape. After you tare the water and the container, make sure you dip the twist-tie in the water to get the weight of the empty twist-tie (the one I used was 0.3g). You’ll need to subtract this weight from the weight of the submerged silver.

The copper tested high. Perhaps copper compresses when it’s struck? And that number is actually on the low side, due to the string going into the water. Actually it being dipped last and water being lost, could cause a high ready if you didn’t tare each time.

Haha at 5:05 I laughed so hard when you said "o it’s just changed, dummy" to your scale. Anyway, really thanks so much for the information that I’ve been searching for quite awhile. It’s very helpful thanks. 😀

Hey, so I did this test with an engelhard prospector round I have. Details are fine but its gold plated and when I did the test I got about 10.8. Do you think this is a cause for concern or do you think that difference is due to the gold plating? Take care man

I do this test with the water at 20 deg. (+/-2 deg) Celcius. I think most people become familiar over time when they get a fake. I’ve been lucky so far…knock on wood! This test gives very accurate results because it’s mechanical & doesn’t involve expensive & elaborate electronic equipment which sometimes could be hit or miss…quirky. Thanks for sharing.

Really enjoyed this video. Now I can test my silver. I just bought the YPS Kilo Skull for $656 (ebay buy it now/best offer)was able to get some ebucks too since he didn’t list it under coins, but only under collectibles, excited to get it and add to my collection. Thanks for the videos!

What if you mixed a nice alloy of brass and tungsten, and used that to make core for poured kilo bars? Match the alloy to silver’s density, keep enough silver around the core to trick the acid and magnet. Only a really $$$ echo machine can find out the forgery. With silver expensive at it is, surely a wortwhile effort for a criminal with a kitchen and a torch.

hey buddy finally a did the test with a 1971 and 1974 one dollar coin I look on google and some places say is 40 % silver and some places not , so I did the test you teach us here and guess what ? the coin weight 22.6 and 22.5 grams , the gravity of the coin inside the water was 2.5 in both coins !!! so 22.6 /2.5 = 9.4 and 22.5 / 2.5 = 9.00 the gravity of silver you say is 10.4 -10.6 my result was 9.04 and 9.00 .,,, But if you multiply the weight 22.6 x 40% silver the result is 9.04 or 22.5 X 40% silver is 9.00 is not AMAZING ? that is exactly the number on my weight with the coin

Wow, cool. Finally a video on this that has some value. Too many videos saying tap and listen, those have no value at all. We do need ways to test silver without wasting $30,000.00, what I seen testers go for.